A. O. Smith Corporation
US ˙ NYSE ˙ US8318652091

SecurityAOS / A. O. Smith Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership1,341,688 shares
Latest Disclosed Value $ 89,732,122
Sei Investments Co ownership in AOS / A. O. Smith Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 1,341,688 shares of A. O. Smith Corporation (US:AOS) valued at $89,732,093 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,320,411 shares of A. O. Smith Corporation. This represents a change in shares of 1.61% during the quarter. The current value of the position is $76,744,554 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (AOS) in the form of stock options.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

AOS / A. O. Smith Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F SMITH A O COM 831865209 1,341,688 21,277 1.61 89,732 -7.43 0.0886
2025-11-13 2025-09-30 13F SMITH A O COM 831865209 1,320,411 44,262 3.47 96,931 15.84 0.1042
2025-08-14 2025-06-30 13F SMITH A O COM 831865209 1,276,149 -174,297 -12.02 83,677 -11.73 0.0970
2025-05-14 2025-03-31 13F/A-1 SMITH A O COM 831865209 1,450,446 47,949 3.42 94,801 -0.90 0.1220
2025-05-13 2025-03-31 13F SMITH A O COM 831865209 1,398,719 -3,778 95,384 0.1037
2025-02-11 2024-12-31 13F SMITH A O COM 831865209 1,402,497 35,355 2.59 95,664 -22.10 0.1229
2024-11-12 2024-09-30 13F SMITH A O COM 831865209 1,367,142 -26,377 -1.89 122,811 7.76 0.1595
2024-08-13 2024-06-30 13F SMITH A O COM 831865209 1,393,519 66,933 5.05 113,962 -3.97 0.1615
2024-05-07 2024-03-31 13F SMITH A O COM 831865209 1,326,586 68,787 5.47 118,677 14.45 0.1739
2024-02-14 2023-12-31 13F SMITH A O COM 831865209 1,257,799 317,389 33.75 103,693 66.74 0.1665
2023-11-14 2023-09-30 13F SMITH A O COM 831865209 940,410 62,520 7.12 62,190 -2.67 0.1117
2023-08-11 2023-06-30 13F SMITH A O COM 831865209 877,890 33,872 4.01 63,893 9.47 0.1114
2023-05-12 2023-03-31 13F SMITH A O COM 831865209 844,018 97,320 13.03 58,364 36.55 0.1084
2023-02-10 2022-12-31 13F SMITH A O COM 831865209 746,698 134,467 21.96 42,741 43.71 0.0950
2022-11-14 2022-09-30 13F SMITH A O COM 831865209 612,231 46,361 8.19 29,742 -3.88 0.0663
2022-08-15 2022-06-30 13F SMITH A O COM 831865209 565,870 185,325 48.70 30,942 27.26 0.0668
2022-05-13 2022-03-31 13F SMITH A O COM 831865209 380,545 28,647 8.14 24,314 -19.52 0.0489
2022-02-14 2021-12-31 13F SMITH A O COM 831865209 351,898 49,345 16.31 30,211 63.51 0.0567
2021-11-12 2021-09-30 13F SMITH A O COM 831865209 302,553 238,808 374.63 18,477 302.29 0.0388
2021-08-06 2021-06-30 13F SMITH A O COM 831865209 63,745 11,209 21.34 4,593 29.31 0.0102
2021-05-12 2021-03-31 13F SMITH A O COM 831865209 52,536 7,368 16.31 3,552 43.46 0.0089
2021-02-08 2020-12-31 13F SMITH A O COM 831865209 45,168 -8,247 -15.44 2,476 -13.03 0.0064
2020-12-04 2020-09-30 13F/A-1 SMITH A O COM 831865209 53,415 -6,064 -10.20 2,847 0.00 0.0082
2020-11-06 2020-09-30 13F SMITH A O COM 831865209 61,332 1,853 3,265 7,861.3941
2020-08-17 2020-06-30 13F/A-1 SMITH A O COM 831865209 59,479 -16,433 -21.65 2,847 -2.20 0.0088
2020-08-11 2020-06-30 13F SMITH A O COM 831865209 75,172 -740 3,618 9,814.0176
2020-05-14 2020-03-31 13F SMITH A O COM 831865209 75,912 -5,254 -6.47 2,911 -25.53 0.0107
2020-02-06 2019-12-31 13F SMITH A O COM 831865209 81,166 -50,840 -38.51 3,909 -37.91 0.0117
2019-11-12 2019-09-30 13F SMITH A O COM 831865209 132,006 -41,599 -23.96 6,296 -23.11 0.0161
2019-08-14 2019-06-30 13F SMITH A O COM 831865209 173,605 -135,040 -43.75 8,188 -50.23 0.0267
2019-05-15 2019-03-31 13F SMITH A O COM 831865209 308,645 97,152 45.94 16,452 69.71 0.0553
2019-02-13 2018-12-31 13F SMITH A O COM 831865209 211,493 121,410 134.78 9,694 99.92 0.0345
2018-11-08 2018-09-30 13F SMITH A O COM 831865209 90,083 -139,570 -60.77 4,849 -64.30 0.0176
2018-08-03 2018-06-30 13F SMITH A O COM 831865209 229,653 36,581 18.95 13,583 10.64 0.0462
2018-05-11 2018-03-31 13F SMITH A O COM 831865209 193,072 -55,707 -22.39 12,277 -19.47 0.0471
2018-02-08 2017-12-31 13F SMITH A O COM 831865209 248,779 -15,438 -5.84 15,246 -2.90 0.0529
2017-11-06 2017-09-30 13F SMITH A O COM 831865209 264,217 24,932 10.42 15,702 16.49 0.0558
2017-07-31 2017-06-30 13F SMITH A O COM 831865209 239,285 12,113 5.33 13,479 15.98 0.0537
2017-05-05 2017-03-31 13F SMITH A O COM 831865209 227,172 60,252 36.10 11,622 47.06 0.0509
2017-02-02 2016-12-31 13F SMITH A O COM 831865209 166,920 110,142 193.99 7,903 40.92 0.0383
2016-11-04 2016-09-30 13F SMITH A O COM 831865209 56,778 -24,046 -29.75 5,608 -21.25 0.0285
2016-08-11 2016-06-30 13F SMITH A O COM 831865209 80,824 -11,075 -12.05 7,121 1.54 0.0427
2016-05-10 2016-03-31 13F/A-1 SMITH A O COM 831865209 91,899 -1,073 -1.15 7,013 -1.54 0.0436
2016-02-03 2015-12-31 13F SMITH A O COM 831865209 92,972 35,007 60.39 7,123 88.49 0.0434
2015-11-02 2015-09-30 13F/A-1 SMITH A O COM 831865209 57,965 -8,159 -12.34 3,779 -20.61 0.0347
2015-10-30 2015-09-30 13F SMITH A O COM 831865209 57,965 3,780
2015-08-07 2015-06-30 13F/A-1 SMITH A O COM 831865209 66,124 2,713 4.28 4,760 14.31 0.0430
2015-08-04 2015-06-30 13F SMITH A O COM 831865209 66,124 2,713 4,760 0.0430
2015-05-14 2015-03-31 13F/A-1 SMITH A O COM 831865209 63,411 -9,432 -12.95 4,164 1.29 0.0362
2015-05-01 2015-03-31 13F SMITH & NEPHEW PUT 831865209 63,411 63,411 4,164 0.0362
2015-02-10 2014-12-31 13F SMITH A O COM 831865209 72,843 72,843 4,111 0.0363
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2015-05-01 2015-03-31 13F SMITH & NEPHEW PUT 63,411 4,164 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.